Traction-wheel.



No. 852,830. w 7 PATENTED MAY 7, m7.

5.. EINFELDT.

TRACTION WHEEL-v1 APPLICATION FILED 001. 9, 1906.

2 SHEETS-BEBE? 1 No. 852.830. PATENTED MAY 7, 1907v .E. EINFBLDT.

' 'TRA'GTION WHEEL.

APPLIOATIOH FILED OCT 9 1906 2 sums-sum 2.

UNITED STATES -B%TENT OFFICE.

' EMIL EINFELDT, OF DAVENlORT, IOWA, ASSIGNOR TO BETTENDORF METAL COMPANY, A CORPORATION OF IOWA.

TRACTION-WHEEL.

Specification of Letters Patent.

. Patented ma 7, 1967.

' Application filed October 9, 1906. 'Serial No. 338.12 1- I To all whom; it may concern.-

Be it known that I, EMIL EI'NFELD'T, of

' Davenport, county of Scott, and State of ave invented'" a new and useful Imrovement 1n Traction-Wheels, of which the ollo'wing is a specification.

- This invention relateswto traction wheels,

and has reference more particularly to the form and manner-of tion cleats "or-lugs to 1;

, that thetractionribs or surfaces extendat I g anglps, i omecases diagonally t able also thatfthere be a traction rib or surface-extending continuously in the line of the line of travels, and in addition, it isdesirtravel circumferentially around'the wheel.

' It is the aim of this inventionto produce a traction-'wheel having the traction. ribs or 3 surfaces disposed the'manner described; and themvention consistsm a series of com-- if the former'being adapted to conjointly pre- Asent' acontinuous rib extending'circu lernentary traction cl'eatsor elements, each ormed with a longitudinally extending traction rib, and with two'flateralitraction ribs,

mferf' entially around the rimpf the wheel, and the lateral ribs being adapted to'present conge fiaoes' on opposite sides of the longitud nal jointly,- transversely extending traction sursurface.

By constructing the traction cleats as described, I- am enabled to employ intheir manufacture, .commercial angle-steel, forming each member or element. as an integral and continuous structure, the base flange resting flatly on the rim of the wheel and affording'a means for fastening the cleat in place, andthe vertical flange extending upextending longitu ally and also laterally with referenee' to the line of travel of the wheel In the accompanying drawingsi Figure '1 is a plan view of the traction wheel having my invention applied thereto in its preferred form. a Fig. 2 is a side elevation of the same. Fig.3 is a perspective view of one of the traction cleats or elements. Fig. 4 is a plan view showing the traction cleats in slightly modified form.

Referring to the drawings: 1 represents my improved traction cleats or elements in their preferred torm, each being- 'iormed from a section or length ofcommercial angle steel,

comprising a base flange 2.- and a vertical flange 3. The vertical ange is deflected at its ends in opposite directions diagonall forming transversely extending tractlonri s 4 and 5. The base flange at the deflection or bend is incised, with t e result that'near on efend, that where the bend is away from the base flange, the latter will present an opennotch 7.

' In ap lying the cleats or members to ,the rim of t e wheel, the base flange is seated flatly thereon, with the intermediate portion of the vertical flange extending longitudinallyand in the direction of the line of travel, and with the angle of 'the vertical flange of each member seated in [the notch. in the. base flange of the next member, so that the intermediate portions of the vertical flanges will extendend to end longitudinally, and will conjointl I present a continu'oustraction rib around t e rim ofthe wheel; The'deflected or lateral portion of each'cleat will, -in'con'-. junction with that of the next cleat, present a transversely extending traction, rib dis-- posedgon opposite'sid'es of the central con-, tinuous rib.

/ The cleats may be secured to the rim of the wheel in'any appropriate manner, either by rivets Qand lO-extending through the base flanges and through the rim of the Wheel, or the. metal spokes of the wheel may be extended upward through the .rim' and base flanges of the cleats, and have. their headeddown thereon. 1

In Fig. 41 have represented my invention. in-slightly modified form. In this case the transverse ribs extend at a true-righteangle to the-longitudinal continuous'rib, whereas;

wardly and-formuiile traction rib or surface, 3 in the first instance described, the traps;-

entis: u

' 1. In combinat on with a'wheel rim, traction cleats applied thereto, and each com-- prising alongitudinally extending traction described my invention, what: I claim and desire to secure by Letters Pat-' verse ribs extended diagonallyj The form rib and two oppositely extending transverse ribs, the longitudinal ribs beingadapted to conj ointly present a continuous tractlon surface extending in the direction of travel of the wheel, and the transverse rib of one cleat being adapted to form conjointly with. the transverse rib of the next cleat, a lateral traction surface extending on opposite sides of the longitudinal surface.

2. In combination with a Wheel rim, a series of complementary traction cleats ap plied thereto and each comprising a longitudinal'rib having'at opposite ends oppositely extending transverse ribs, the said longitudinal portions of the cleats being placed end to end, with the lateral rib of one cleat forming a continuation-of the lateral rib of the next cleat. f 3. The improved traction cleat or element,

consisting or a length of angle steel having the base flange incised, and the vertical In testimony whereof I hereunto set my" hand this twenty eighth day of September, 1906, in the presence of two attesting Wit- IIGSSGS.

EMIL EINFELDT. Witnesses M. LOUIsE' DODGE, LEON ZOECKLER. 

